Real-time continuous calibration method for an ultraviolet camera

被引：6
|
作者：
Wu, Kuijun [1 ]
Feng, Yutao [2 ]
Xiong, Yuanhui [3 ,4 ]
Duan, Weimin [3 ,4 ]
Yu, Guangbao [3 ,4 ]
Li, Faquan [3 ]
机构：
[1] Yantai Univ, Sch Optoelect Informat Sci & Technol, Yantai 264005, Peoples R China
[2] Chinese Acad Sci, Xian Inst Opt & Precis Mech, Key Lab Spectral Imaging Technol, Xian 710119, Peoples R China
[3] Chinese Acad Sci, Wuhan Natl Lab Optoelect, Innovat Acad Precis Measurement Sci & Technol, Wuhan Inst Phys & Math,State Key Lab Magnet Reson, Wuhan 430071, Peoples R China
[4] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
OPTICS LETTERS | 2020年 / 45卷 / 24期
基金：
中国国家自然科学基金;
关键词：
SO2; CAMERA; EXTINCTION COEFFICIENT; VOLCANIC PLUMES; EMISSIONS;
D O I：
10.1364/OL.410635
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The accuracy of SO2 cameras is significantly determined by the ability to obtain an accurate calibration. This work presents a real-time continuous calibration method for SO2 cameras with a moderate resolution spectrometer by taking realistic radiative transfer into account. The effectiveness and accuracy of the proposed method have been verified through simulations and experiments. The calibration error can be reduced by about 20-80% compared with the commonly used cell calibration, especially for situations of long distance, poor visibility, or optically thick plumes. (C) 2020 Optical Society of America
引用
收藏
页码：6851 / 6854
页数：4
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